Plumb.



O. D. McGARTY.

PLUMB.

APPLIOATION FILED NOV. 29, 1912.

1,086,679. Patented Feb. 10, 1914,

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COUJILB'IA PLANOGRAPH COQWASHINQTON, n. c.

UNETED STATES PATENT ()FFICE.

CHARLES I). MCCARTY, OF WHEELING, WEST VIRGINIA.

PLUMB.

0 aZZ 20/20)) it may concern:

Be it known that I, CHARLES D. MOCARTY, a citizen of the United States of America, and resident of Wheeling, county of Ohio, and State of est Virginia, have invented certain new and useful Improvements in Plumbs, of which the following is a specification.

This invention relates to improvements in plumbs for carpenters and joiners use, and more particularly to a novel form of plumb rule.

The primary object of the invention is to provide an extremely simple and comparatively inexpensive tool whereby upright walls, shafts, newels, pilasters, and the like may readily be plumbed.

A further object is to provide a device which is specially adapted for use in plumbing surfaces between projecting ledges, fil lets, or moldings, or in close places the plumbing of which is ordinarily attended with more or less difiiculty. And a still further object is to provide a tool of the character mentioned which is of such size as to permit of its being conveniently carried either in a pocket or in any ordinary toolkit.

With these and other objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be eX- emplified, reference being had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a rear elevation of the inven tion; Fig. 2 is a horizontal section of the same; Fig. 8 is a front elevation of the same; and F 4: is a perspective view of the invention, showing it applied to the plumbing of a newel post.

Referring to said drawings, in which'like designating characters distinguish like parts throughout the several views-l indicates the body portion of gage-like clamp which is mortised on its rear face to form oppositely disposed shoulders 1 and 1 which define the ends of a space adapted for receiving a bar, scantling, or other suitable piece of material, as 2, which may or may not be irregular in shape, as will hereinafter be explained. Extending through the angularly disposed outer end 3 of the clamp is a finger-operated j ack-screw 4, preferably provided with a milled head 5, the presser shoe 6 of which is adapted to exert clamping Specification of Letters Patent.

Application filed November 29, 1912.

Patented Feb. 10, 1914. Serial No. 733,958.

pressure on the outer edge of the piece 2 whereby the clamp is rigidly attached to said piece. A forwardly projecting lip or lug 7 is formed upon, or is carried by, the front face of the clamp, and provided therein is a notch or kerf 8 adapted for receiving the line 9 of a plumb-bob 10. The inner end of the clamp has a plain squared face 11 adapted for seating abutting engagement with the upright surface to be plumbed.

In practice, two of the clamps just described are employed, the same being clamped, as described, upon a scantling or other suitable piece of material of appropriate length. Owing to the fact that the notches or kerfs in the lugs 7 of said clamps are located at precisely equal distances from the inner, or squared ends, of the clamps, it will be obvious that when the scantling is placed upright with said squared ends seated firmly against the surface to be plumbed, the verti cally suspended plumb line 9 supported in the kerf of the uppermost clamp, as by a knot 12, should hang directly in the kerf of the lowermost clamp.

It will be noted that the device is specially adapted for use in close places, as between projecting ledges, moldings, or the like, where pieces 2 of any considerable length may not be employed because of interference from said projections, it being only necessary to select a piece of any convenient material having a length which may be interposed between the outstanding projections and to attach the two clamps thereto, as described, and to suspend a plumb line from the uppermost clamp, whereupon the plumbing operation may be quickly and conveniently perform-ed. When it is desired to plumb a high plain-faced wall, shaft, or the like, the same may be readily accomplished from below by attaching the clamps to the opposite ends of a scantling having the requisite length and elevating the same by hand to proper position.

The upper and lower clamps are preferably made identical in size and form, rendering them interchangeable.

As is obvious, the bar or scantling 2 need not have straight or regular sides or edges; an object had in view in the production of the present invention being to permit of the use of any form or shape of bar or like de vice which may be found close at hand to which the clamps may be attached, thus avoiding the necessity of having to employ a straight or specially formed or shaped lugs carried on the front faces of said piece of material, as is usually required. clamps, said lugs having notches provided Having thus described my invention, What therein equidistant from the squared ends I claim as new, and desire to secure by Letof the clamps.

5 ters Patent, is- In testimony whereof, I affix my signature 15 A plumb-rule comprising a bar, a pair of in presence of two subscribing Witnesses. clamps removably mounted in fixed position CHARLES D. MOCARTY. on said bar, said clamps having their inner Witnesses: ends squared and equidistant from the cor- H. E. DUNLAP, 10 responding edge of said bar, and projecting L. D. MORRIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

